Accounts Payable Process
Process Flow Chart
C o m p le te P . O . W ork s h e e t
T ype P.O .
C o llec t a u th o r izin g s ig n a tu r es S e n d to p u rc ha s in g
S e n d in v o ic e to o p e ra t ion s a c c o u n tin g
S u p p lie r sh ip s m a te
Process Development Study
Model: Full Factorial in XA, XB, XD (pseudo-replication)
Response Conv. % Summary of Fit
RSquare RSquare Adj Root Mean Square Error Mean of Response Observations (or Sum Wgts) 0.987861 0.97724 2.061553 72.25 16
Analysis of Varian
Stat 496 Project Experiments with a Paper Helicopter
This semester the Stat 496 project will be divided into a series of experiments. Each experiment will involve paper helicopters as the experimental units. The experiments will correspond to different ty
One Factor Experiment: Reaction Rate
Oneway Analysis of Reaction Rate By Temperature Category
20
15 Reaction Rate
10
5
0
1 Low
2 Medium Temperature Category
3 High
1
Welding Experiment
Prediction using coded predictors
1
Response Strength Summary of Fit
RSquare RSquare Adj Root Mean Square Error Mean of Response Observations (or Sum Wgts) 0.932275 0.921856 4.437602 47 16
Analysis of Variance
Source Model Error C. Tota
STAT 496, Spring 2011
Homework Assignment #8, Due by Tuesday, May 3
1. A study is done on the time to failure for turbine engine windings. The engine windings are put on test at high temperature (100 oC) and their times to failure (hours) are recorded. Se
STAT 496, Spring 2011
Homework Assignment #7, Due by Thursday, April 14 1. An experiment involving a wire bonder is reported in "How to Optimize and Control the Wire Binding Process: Part I" by Scheaffer and Levine, Solid State Technology, November, 1990.
STAT 496, Spring 2011
Homework Assignment #6, Due by Thursday, March 24 1. An engineer is interested in the effects of cutting speed (A), tool geometry (B), and cutting angle (C) on the life (in hours) of a machine tool. Because the hardness of the raw ma
JMP Output for Airplane Component Reliability Data
Product-Limit Survival Fit Survival Plot
1.0 0.9 0.8 0.7 Surviving 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0.0 0.5 1.0 1.5 Time Time to eve nt:Time Censored b y Censor Censor Code 1 2.0 2.5 3.0
Summary
Group Combine
Call Pickup Time
Variables Control Charts XBar Chart of Response Time
120 100 80 Mean of Time 60 40 Avg=31.93 20 0 -20 0 5 10 15 20 25 30 Sample 35 40 45 50 UCL=68.88
LCL=-5.02
Note: Sigma used for limits based on range. R Chart of Response Time
400 350 3
Stat 496: Exam 1 Scores
Exam 1 Score (Max = 100)
Five Number Summary Statistics 100.0% maximum 100 Mean 84.0 75.0% quartile 93 Std Dev 11.47 50.0% median 87.5 25.0% quartile 77 0.0% minimum 55
Statistics 496, Applied Statistics for Industry II Exam 1, Spring 2009
Name: _ Site: _
INSTRUCTIONS: You will have 1 hour and 30 minutes to complete the exam. There are 5 questions worth a total of 100 points. Not all questions have the same point value s
Statistics 496, Applied Statistics for Industry II Final Exam, Spring 2009
Name: _ Site: _
INSTRUCTIONS: You will have 2 hours to complete the exam. There are 5 questions worth a total of 125 points. Not all questions have the same point value so gauge yo
Formulas for Exam 1
Two independent samples Test Statistic for testing H 0 : 1 2 or H 0 : 1 2 0
t
y1 y2 0
sp 1 1 n1 n2
2 2 n1 1s1 n2 1s2
sp
n1 n2 2
Confidence interval for 1 2 :
y1 y2 t
2 , k n 1s p
1 1 1 1 to y1 y2 t 2 , k n 1s p n1 n2 n1 n2
For most
Process Capability
Theoretical
Cp USL LSL 6
Estimate
USL LSL ^ Cp 6s
CPU
USL 3
^ CPU
% > USL = Pr Z 3 * CPU
CPL
^ % > USL = Pr Z 3 * CPU
^ CPL X LSL 3s
USL X 3s
LSL 3
% < LSL = Pr Z 3 * CPL
C pk min CPU , CPL
^ % < LSL = Pr Z 3 * CPL
^ ^ ^ C pk min
STAT 496, Spring 2011
Homework Assignment #1, due Thursday, January 27 1. The luminance of an indicator bar is a critical quality characteristic for an indicator assembly. Luminance is measured in foot-Lamberts (fL) with a minimum specification of 150 fL
STAT 496, Spring 2011
Homework Assignment #2, Due by Thursday, February 3 1. The three fundamental principles of a designed experiment are: control of outside variables, randomization, and replication. Consider each of the following scenarios. Does each a
STAT 496, Spring 2011
Homework Assignment #3, Due by Thursday, February 10
1. An important quality characteristic in the manufacture of pulp used in paper is the pulp brightness. Pulp brightness is measured with a reflectance meter. Each of four shift ope
STAT 496, Spring 2011
Homework Assignment #4, Due by Thursday, March 3
1. In an experiment on the effectiveness of laundry detergents, 2 brands of detergent and 2 water temperatures are used in a 22 factorial experiment. A standard load of laundry consist
STAT 496, Spring 2011
Homework Assignment #5, Due by Thursday, March 10 1. A factorial experiment is performed to determine the importance of four factors on the efficiency of a distillation column that is used to separate two chemical compounds. The four
White Millbase Process
Control Charts for Weight (Old Process)
Control Chart Individual Measurement of Weight Old Process
15.50 Weight Old Process UCL=15.1918 15.00 14.50 Avg=14.3100 14.00 13.50 0 5 10 15 Sample 20 25 LCL=13.4282
Control Chart Moving Rang